added < support

spec/semver_spec.lua

@@ -63,6 +63,42 @@ context('semver', function()
         assert_error(function() v("1.2.3foobar") end)
       end)
     end)
-
   end)
+
+  describe("tostring", function()
+    it("works with major, minor and patch", function()
+      assert_equal("1.2.3", tostring(v(1,2,3)))
+    end)
+  end)
+
+  describe("==", function()
+    it("is true when major, minor and patch are the same", function()
+      assert_equal(v(1,2,3), v'1.2.3')
+    end)
+    it("is false when major, minor and patch are not the same", function()
+      assert_not_equal(v(1,2,3), v(4,5,6))
+    end)
+  end)
+
+  describe("<", function()
+    test("true if major < minor", function()
+      assert_less_than(v'1.100.10', v'2.0.0')
+    end)
+    test("false if major > minor", function()
+      assert_greater_than(v'2', v'1')
+    end)
+    test("true if major = major but minor < minor", function()
+      assert_less_than(v'1.2.0', v'1.3.0')
+    end)
+    test("false if minor < minor", function()
+      assert_greater_than(v'1.1', v'1.0')
+    end)
+    test("true if major =, minor =, but patch <", function()
+      assert_less_than(v'0.0.1', v'0.0.10')
+    end)
+    test("false if major =, minor =, but patch >", function()
+      assert_greater_than(v'0.0.2', v'0.0.1')
+    end)
+  end)
+
 end)